1 ! Copyright (C) 2004, 2009 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: byte-arrays arrays assocs kernel kernel.private math
4 math.order math.parser namespaces make parser sequences strings
5 words splitting cpu.architecture alien alien.accessors
6 alien.strings quotations layouts system compiler.units io
7 io.files io.encodings.binary io.streams.memory accessors
8 combinators effects continuations fry classes vocabs
9 vocabs.loader words.symbol ;
26 TUPLE: abstract-c-type
27 { class class initial: object }
28 { boxed-class class initial: object }
29 { boxer-quot callable }
30 { unboxer-quot callable }
35 { align-first integer } ;
37 TUPLE: c-type < abstract-c-type
40 { rep initial: int-rep }
43 : <c-type> ( -- c-type )
49 c-types [ H{ } assoc-like ] change
52 ERROR: no-c-type name ;
54 PREDICATE: c-type-word < word
57 UNION: c-type-name string c-type-word ;
60 GENERIC: c-type ( name -- c-type ) foldable
62 GENERIC: resolve-pointer-type ( name -- c-type )
64 << \ void \ void* "pointer-c-type" set-word-prop >>
66 : void? ( c-type -- ? )
67 { void "void" } member? ;
69 M: word resolve-pointer-type
70 dup "pointer-c-type" word-prop
71 [ ] [ drop void* ] ?if ;
73 M: string resolve-pointer-type
74 dup "*" append dup c-types get at
77 c-types get at dup c-type-name?
78 [ resolve-pointer-type ] [ drop void* ] if
81 : resolve-typedef ( name -- c-type )
82 dup void? [ no-c-type ] when
83 dup c-type-name? [ c-type ] when ;
87 : parse-array-type ( name -- dims c-type )
89 [ [ "]" ?tail drop string>number ] map ] dip ;
93 M: string c-type ( name -- c-type )
94 CHAR: ] over member? [
95 parse-array-type prefix
97 dup c-types get at [ ] [
98 "*" ?tail [ resolve-pointer-type ] [ no-c-type ] if
103 dup "c-type" word-prop resolve-typedef
104 [ ] [ no-c-type ] ?if ;
106 GENERIC: c-struct? ( c-type -- ? )
108 M: object c-struct? drop f ;
110 M: c-type-name c-struct? dup void? [ drop f ] [ c-type c-struct? ] if ;
112 ! These words being foldable means that words need to be
113 ! recompiled if a C type is redefined. Even so, folding the
114 ! size facilitates some optimizations.
115 GENERIC: c-type-class ( name -- class )
117 M: abstract-c-type c-type-class class>> ;
119 M: c-type-name c-type-class c-type c-type-class ;
121 GENERIC: c-type-boxed-class ( name -- class )
123 M: abstract-c-type c-type-boxed-class boxed-class>> ;
125 M: c-type-name c-type-boxed-class c-type c-type-boxed-class ;
127 GENERIC: c-type-boxer ( name -- boxer )
129 M: c-type c-type-boxer boxer>> ;
131 M: c-type-name c-type-boxer c-type c-type-boxer ;
133 GENERIC: c-type-boxer-quot ( name -- quot )
135 M: abstract-c-type c-type-boxer-quot boxer-quot>> ;
137 M: c-type-name c-type-boxer-quot c-type c-type-boxer-quot ;
139 GENERIC: c-type-unboxer ( name -- boxer )
141 M: c-type c-type-unboxer unboxer>> ;
143 M: c-type-name c-type-unboxer c-type c-type-unboxer ;
145 GENERIC: c-type-unboxer-quot ( name -- quot )
147 M: abstract-c-type c-type-unboxer-quot unboxer-quot>> ;
149 M: c-type-name c-type-unboxer-quot c-type c-type-unboxer-quot ;
151 GENERIC: c-type-rep ( name -- rep )
153 M: c-type c-type-rep rep>> ;
155 M: c-type-name c-type-rep c-type c-type-rep ;
157 GENERIC: c-type-getter ( name -- quot )
159 M: c-type c-type-getter getter>> ;
161 M: c-type-name c-type-getter c-type c-type-getter ;
163 GENERIC: c-type-setter ( name -- quot )
165 M: c-type c-type-setter setter>> ;
167 M: c-type-name c-type-setter c-type c-type-setter ;
169 GENERIC: c-type-align ( name -- n )
171 M: abstract-c-type c-type-align align>> ;
173 M: c-type-name c-type-align c-type c-type-align ;
175 GENERIC: c-type-align-first ( name -- n )
177 M: c-type-name c-type-align-first c-type c-type-align-first ;
179 M: abstract-c-type c-type-align-first align-first>> ;
181 GENERIC: c-type-stack-align? ( name -- ? )
183 M: c-type c-type-stack-align? stack-align?>> ;
185 M: c-type-name c-type-stack-align? c-type c-type-stack-align? ;
187 : c-type-box ( n c-type -- )
188 [ c-type-rep ] [ c-type-boxer [ "No boxer" throw ] unless* ] bi
191 : c-type-unbox ( n c-type -- )
192 [ c-type-rep ] [ c-type-unboxer [ "No unboxer" throw ] unless* ] bi
195 GENERIC: box-parameter ( n c-type -- )
197 M: c-type box-parameter c-type-box ;
199 M: c-type-name box-parameter c-type box-parameter ;
201 GENERIC: box-return ( c-type -- )
203 M: c-type box-return f swap c-type-box ;
205 M: c-type-name box-return c-type box-return ;
207 GENERIC: unbox-parameter ( n c-type -- )
209 M: c-type unbox-parameter c-type-unbox ;
211 M: c-type-name unbox-parameter c-type unbox-parameter ;
213 GENERIC: unbox-return ( c-type -- )
215 M: c-type unbox-return f swap c-type-unbox ;
217 M: c-type-name unbox-return c-type unbox-return ;
219 : little-endian? ( -- ? ) 1 <int> *char 1 = ; foldable
221 GENERIC: heap-size ( name -- size )
223 M: c-type-name heap-size c-type heap-size ;
225 M: abstract-c-type heap-size size>> ;
227 GENERIC: stack-size ( name -- size )
229 M: c-type-name stack-size c-type stack-size ;
231 M: c-type stack-size size>> cell align ;
233 GENERIC: byte-length ( seq -- n ) flushable
235 M: byte-array byte-length length ; inline
237 M: f byte-length drop 0 ; inline
239 : >c-bool ( ? -- int ) 1 0 ? ; inline
241 : c-bool> ( int -- ? ) 0 = not ; inline
245 : c-getter ( name -- quot )
247 [ "Cannot read struct fields with this type" throw ]
250 : c-type-getter-boxer ( name -- quot )
251 [ c-getter ] [ c-type-boxer-quot ] bi append ;
253 : c-setter ( name -- quot )
255 [ "Cannot write struct fields with this type" throw ]
258 : array-accessor ( c-type quot -- def )
260 \ swap , [ heap-size , [ * >fixnum ] % ] [ % ] bi*
263 GENERIC: typedef ( old new -- )
265 PREDICATE: typedef-word < c-type-word
266 "c-type" word-prop c-type-name? ;
268 M: string typedef ( old new -- ) c-types get set-at ;
270 M: word typedef ( old new -- )
272 [ nip define-symbol ]
274 [ swap "c-type" set-word-prop ]
276 swap dup c-type-name? [
278 "pointer-c-type" set-word-prop
283 TUPLE: long-long-type < c-type ;
285 : <long-long-type> ( -- c-type )
288 M: long-long-type unbox-parameter ( n c-type -- )
289 c-type-unboxer %unbox-long-long ;
291 M: long-long-type unbox-return ( c-type -- )
292 f swap unbox-parameter ;
294 M: long-long-type box-parameter ( n c-type -- )
295 c-type-boxer %box-long-long ;
297 M: long-long-type box-return ( c-type -- )
298 f swap box-parameter ;
300 : define-deref ( c-type -- )
301 [ name>> CHAR: * prefix "alien.c-types" create ] [ c-getter 0 prefix ] bi
302 (( c-ptr -- value )) define-inline ;
304 : define-out ( c-type -- )
305 [ name>> "alien.c-types" constructor-word ]
306 [ dup c-setter '[ _ heap-size (byte-array) [ 0 @ ] keep ] ] bi
307 (( value -- c-ptr )) define-inline ;
309 : define-primitive-type ( c-type name -- )
310 [ typedef ] [ define-deref ] [ define-out ] tri ;
312 : if-void ( c-type true false -- )
313 pick void? [ drop nip call ] [ nip call ] if ; inline
315 CONSTANT: primitive-types
327 ptrdiff_t intptr_t uintptr_t size_t
330 : 8-byte-alignment ( c-type -- c-type )
332 { [ cpu ppc? os macosx? and ] [ 4 >>align 8 >>align-first ] }
333 { [ cpu x86.32? os windows? not and ] [ 4 >>align 4 >>align-first ] }
334 [ 8 >>align 8 >>align-first ]
341 [ alien-cell ] >>getter
342 [ [ >c-ptr ] 2dip set-alien-cell ] >>setter
343 bootstrap-cell >>size
344 bootstrap-cell >>align
345 bootstrap-cell >>align-first
346 [ >c-ptr ] >>unboxer-quot
347 "allot_alien" >>boxer
348 "alien_offset" >>unboxer
349 \ void* define-primitive-type
353 integer >>boxed-class
354 [ alien-signed-4 ] >>getter
355 [ set-alien-signed-4 ] >>setter
359 "from_signed_4" >>boxer
360 "to_fixnum" >>unboxer
361 \ int define-primitive-type
365 integer >>boxed-class
366 [ alien-unsigned-4 ] >>getter
367 [ set-alien-unsigned-4 ] >>setter
371 "from_unsigned_4" >>boxer
373 \ uint define-primitive-type
378 [ alien-signed-2 ] >>getter
379 [ set-alien-signed-2 ] >>setter
383 "from_signed_2" >>boxer
384 "to_fixnum" >>unboxer
385 \ short define-primitive-type
390 [ alien-unsigned-2 ] >>getter
391 [ set-alien-unsigned-2 ] >>setter
395 "from_unsigned_2" >>boxer
397 \ ushort define-primitive-type
402 [ alien-signed-1 ] >>getter
403 [ set-alien-signed-1 ] >>setter
407 "from_signed_1" >>boxer
408 "to_fixnum" >>unboxer
409 \ char define-primitive-type
414 [ alien-unsigned-1 ] >>getter
415 [ set-alien-unsigned-1 ] >>setter
419 "from_unsigned_1" >>boxer
421 \ uchar define-primitive-type
425 [ alien-unsigned-4 c-bool> ] >>getter
426 [ [ >c-bool ] 2dip set-alien-unsigned-4 ] >>setter
430 "from_boolean" >>boxer
431 "to_boolean" >>unboxer
434 [ alien-unsigned-1 c-bool> ] >>getter
435 [ [ >c-bool ] 2dip set-alien-unsigned-1 ] >>setter
439 "from_boolean" >>boxer
440 "to_boolean" >>unboxer
442 \ bool define-primitive-type
446 math:float >>boxed-class
447 [ alien-float ] >>getter
448 [ [ >float ] 2dip set-alien-float ] >>setter
455 [ >float ] >>unboxer-quot
456 \ float define-primitive-type
460 math:float >>boxed-class
461 [ alien-double ] >>getter
462 [ [ >float ] 2dip set-alien-double ] >>setter
465 "from_double" >>boxer
466 "to_double" >>unboxer
468 [ >float ] >>unboxer-quot
469 \ double define-primitive-type
474 integer >>boxed-class
475 [ alien-signed-cell ] >>getter
476 [ set-alien-signed-cell ] >>setter
477 bootstrap-cell >>size
478 bootstrap-cell >>align
479 bootstrap-cell >>align-first
480 "from_signed_cell" >>boxer
481 "to_fixnum" >>unboxer
482 \ longlong define-primitive-type
486 integer >>boxed-class
487 [ alien-unsigned-cell ] >>getter
488 [ set-alien-unsigned-cell ] >>setter
489 bootstrap-cell >>size
490 bootstrap-cell >>align
491 bootstrap-cell >>align-first
492 "from_unsigned_cell" >>boxer
494 \ ulonglong define-primitive-type
497 \ int c-type \ long typedef
498 \ uint c-type \ ulong typedef
500 \ longlong c-type \ long typedef
501 \ ulonglong c-type \ ulong typedef
504 \ longlong c-type \ ptrdiff_t typedef
505 \ longlong c-type \ intptr_t typedef
507 \ ulonglong c-type \ uintptr_t typedef
508 \ ulonglong c-type \ size_t typedef
512 integer >>boxed-class
513 [ alien-signed-8 ] >>getter
514 [ set-alien-signed-8 ] >>setter
517 "from_signed_8" >>boxer
518 "to_signed_8" >>unboxer
519 \ longlong define-primitive-type
523 integer >>boxed-class
524 [ alien-unsigned-8 ] >>getter
525 [ set-alien-unsigned-8 ] >>setter
528 "from_unsigned_8" >>boxer
529 "to_unsigned_8" >>unboxer
530 \ ulonglong define-primitive-type
532 \ int c-type \ long typedef
533 \ int c-type \ ptrdiff_t typedef
534 \ int c-type \ intptr_t typedef
536 \ uint c-type \ ulong typedef
537 \ uint c-type \ uintptr_t typedef
538 \ uint c-type \ size_t typedef
540 ] with-compilation-unit
542 M: char-16-rep rep-component-type drop char ;
543 M: uchar-16-rep rep-component-type drop uchar ;
544 M: short-8-rep rep-component-type drop short ;
545 M: ushort-8-rep rep-component-type drop ushort ;
546 M: int-4-rep rep-component-type drop int ;
547 M: uint-4-rep rep-component-type drop uint ;
548 M: longlong-2-rep rep-component-type drop longlong ;
549 M: ulonglong-2-rep rep-component-type drop ulonglong ;
550 M: float-4-rep rep-component-type drop float ;
551 M: double-2-rep rep-component-type drop double ;
553 : rep-length ( rep -- n )
554 16 swap rep-component-type heap-size /i ; foldable
556 : (unsigned-interval) ( bytes -- from to ) [ 0 ] dip 8 * 2^ 1 - ; foldable
557 : unsigned-interval ( c-type -- from to ) heap-size (unsigned-interval) ; foldable
558 : (signed-interval) ( bytes -- from to ) 8 * 1 - 2^ [ neg ] [ 1 - ] bi ; foldable
559 : signed-interval ( c-type -- from to ) heap-size (signed-interval) ; foldable
561 : c-type-interval ( c-type -- from to )
563 { [ dup { float double } member-eq? ] [ drop -1/0. 1/0. ] }
564 { [ dup { char short int long longlong } member-eq? ] [ signed-interval ] }
565 { [ dup { uchar ushort uint ulong ulonglong } member-eq? ] [ unsigned-interval ] }
568 : c-type-clamp ( value c-type -- value' )
569 dup { float double } member-eq?
570 [ drop ] [ c-type-interval clamp ] if ; inline